I would disagree that the title should be changed, since the linked content does not reflect the additional context you’re referring to.
I suppose a more fully-qualified title might append “in letter to the president”.
But appending “if no measures are taken” is not accurate, since this article — his letter to the president — doesn’t include this context.
Saying the title is sensationalist is equivalent to saying the letter is sensationalist.
And if that is the case, the most you could say is a sensationalist title accurately represents a sensationalist letter.